一个英语问题,We were standing on the right请问,stand为什么要加ing?很明显这不是现

一个英语问题,We were standing on the right请问,stand为什么要加ing?很明显这不是现 请教一个句子的语法,There is a parrot standing on a book.为什么stand要加ing 简单英语音调问题we are standing( )on the left.↓请问括号中的是升调还是降调? 为什么?谢谢 Jack sat there without standing up .stand 的后面为什么要加ing . 请教一个句子的语法,There is a parrot standing on a book. 为什么stand要加in take the second turning on the right .这里turn为什么要加ing We were late for the meeting 为什么meeting要加ING We are standing on the left.怎么不用were 英语定语从句问题It is on the farm ——we worked.为什么填where 不填that,这不是强调 Leave the water standing overnight.为什么stand要用ing形式啊? I was always so lonely standing there这里的stand为什么是ing?能不能是to 英语高手来看看 do you know the boy standing over there? 这里为什么stand要